TurboTax never knows anything about a tax return that you mailed. No information is provided to TurboTax after you file a tax return either by e-filing it or mailing it. If you used a mailing service like certified mail to track it and confirm that it was received then you would know that the IRS received the returns. Hope you used separate envelopes for each tax year or one of them might be overlooked when the envelope is opened.
It is taking the very backlogged IRS six months or more to process mailed returns, so you will not know anything about your refund for those returns until you receive the refund. The IRS does not put information about 2018 or 2019 refunds on the refund site.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
